Similar submarine canyon systems exist on scales ranging from less than a kilometer to nearly 1000 km. The shallowest end is a submarine canyon and canyon head(s). Further down the canyon is buried by the upper part of a submarine fan with meandering and cross-cutting channels. The fan eventually merges with a nearly flat-lying depositional basin. We have used the deposits associated with these...

Shale reservoirs, the most important unconventional resource, are difficult to characterize. formations require detailed interpretation of geological, petrophysical, and geochemical analyses, an integration these disciplines. In terms geological interpretation, commonly used sequence stratigraphy analysis includes a lithofacies analysis. The application shales facilitates ability relate between...

In a recent review published in this journal, Coutts et al. (2019) compared nine different ways to estimate the maximum depositional age (MDA) of siliclastic rocks by means detrital geochronology. Their results show that among these methods three are positively and six negatively biased. This paper investigates the cause these biases proposes solution it. A simple toy example shows that it i...

The mollusc fauna from the Pliocene Viviparus beds of Vukomeričke Gorice hills in central Croatia was investigated at four sites in the region of Kravarsko, S of Zagreb. The region represents a Pleistocene horst-anticline at the southern margin of the Sava depression. Sediments are dominated by clay, bearing some sand, gravel and lignite intercalations. The molluscs, comprising 11 gastropod and...

Stratigraphic correlations presented here for the ductilely deformed and metamorphosed rocks exposed in the Shadow Mountains indicate that they formed on the North American continental margin and are not exotic or significantly displaced from their site of origin. These strata represent a depositional history that spans Late Proterozoic and Paleozoic passive margin development, late Paleozoic t...

Models of stratigraphic completeness and bed formation in fluvial depositional environments have most often assumed that successive depositional and erosional events deposit or erode amounts of sediment independently. This results in a random-walk model for the total amount of deposited sediment locally as a function of time. We consider an extension of the random-walk model of sedimentation in...

[1] The geologic history of Crater Terby is developed through geomorphic and stratigraphic analyses within the regional context of the Hellas basin. Terby exhibits 2-km-thick sequences of layers that consist of repetitive, subhorizontal and laterally continuous beds. The layers are predominantly fine-grained as indicated by their ease of aeolian erosion, although a few consolidated layers weath...

Based on the LA-ICP-MS U-Pb zircon ages of four metamorphic samples, we discuss geochronology and provenance Guadaiza nappe, an allochthonous unit that underlies Ronda peridotites (Betic Cordilleras, Spain). The nappe is composed Triassic marbles overlying a metapelitic sequence with schists migmatites. Zircons from quartzite interlayered yield maximum depositional age ca. 289 Ma supports age. ...